import 'package:flutter_test/flutter_test.dart';
import 'package:medito/exceptions/app_error.dart';
import 'package:medito/models/auth/auth_tokens.dart';
import 'package:medito/services/network/auth_api_service.dart';
import 'package:medito/services/network/http_api_service.dart';
import 'package:medito/services/secure_storage_service.dart';
import 'package:mocktail/mocktail.dart';

class MockSecureStorageService extends Mock implements SecureStorageService {}

class MockHttpApiService extends Mock implements HttpApiService {}

class MockAuthApiService extends Mock implements AuthApiService {}

void main() {
  late MockSecureStorageService mockSecureStorage;
  late MockAuthApiService mockAuthService;

  setUp(() {
    mockSecureStorage = MockSecureStorageService();
    mockAuthService = MockAuthApiService();

    // Register fallback values for parameters
    registerFallbackValue('fallback-token');
  });

  group('Token Refresh Tests', () {
    test('should successfully refresh token when valid refresh token exists',
        () async {
      // Arrange
      final refreshToken = 'valid-refresh-token';
      final newAccessToken = 'new-access-token';

      // Use the proper AuthTokens model instead of the HTTP constants version
      final tokens = AuthTokens(
        accessToken: newAccessToken,
        refreshToken: refreshToken,
        expiresIn: 3600,
        clientId: 'test-client-id',
        email: null,
      );

      when(() => mockSecureStorage.getRefreshToken())
          .thenAnswer((_) async => refreshToken);
      when(() => mockAuthService.refreshToken(any()))
          .thenAnswer((_) => Future<AuthTokens>.value(tokens));

      // Act & Assert
      // This would need to call a method that triggers the refresh token flow
      // For example, httpService.getRequest('/some-endpoint')
      // But since HttpApiService is a singleton with internal auth service,
      // we would need to modify it to accept injected dependencies for testing

      // For now, this test is a placeholder to show the structure
      expect(await mockSecureStorage.getRefreshToken(), equals(refreshToken));
      verify(() => mockSecureStorage.getRefreshToken()).called(1);
    });

    test('should handle missing refresh token correctly', () async {
      // Arrange
      when(() => mockSecureStorage.getRefreshToken())
          .thenAnswer((_) async => null);

      // Act & Assert
      // Similar issue as above - would need to modify HttpApiService for proper testing
      expect(await mockSecureStorage.getRefreshToken(), isNull);
      verify(() => mockSecureStorage.getRefreshToken()).called(1);
    });

    test('should handle refresh token errors correctly', () async {
      // Arrange
      final refreshToken = 'invalid-refresh-token';

      when(() => mockSecureStorage.getRefreshToken())
          .thenAnswer((_) async => refreshToken);
      when(() => mockAuthService.refreshToken(refreshToken))
          .thenThrow(const RefreshTokenError());
      when(() => mockSecureStorage.clearRefreshToken())
          .thenAnswer((_) async => {});

      // Act & Assert
      // Similar to above tests, would need modified HttpApiService
      expect(await mockSecureStorage.getRefreshToken(), equals(refreshToken));
      verify(() => mockSecureStorage.getRefreshToken()).called(1);
    });
  });

  // This test would be more meaningful if HttpApiService allowed dependency injection
  test('Integration test for token refresh flow', () async {
    // This would be a full integration test that checks the entire flow
    // from an expired token to a successful refresh
    // Currently not implemented due to HttpApiService singleton limitations
  });
}
